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【简答题】
如图所示电路中,已知E 1 =40V,E 2 =5V,E 3 =25V,R 1 =5Ω,R 2 =R 3 =10Ω,试用支路电流法求各支路的电流。
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【简答题】Directions: Fill the follwing blanks with words given below. Change the form where necessary. erase pregnant register strain twilight unemployed head for on one's feet pay back ...
【简答题】用于暂存CPU送往外围设备的数据或在DMA方式下内存送往外围设备数据的寄存器是_____。
【单选题】听力原文： The American Vice President Dick Cheney has said he accepts full responsibility for accidentally shooting and injuring a fellow hunter over the weekend. Mr. Cheney has been coming under increasi...
A.
a doctor.
B.
a secretary.
C.
a lawyer.
D.
a leader.
【单选题】After he accepts the assignment of meeting tourists, the guide shold check the date, time and palce of their arrival.
A.
T
B.
F
【单选题】听力原文： The American Vice President Dick Cheney has said he accepts full responsibility for accidentally shooting and injuring a fellow hunter over the weekend. Mr. Cheney has been coming under increasi...
A.
a doctor.
B.
a secretary.
C.
a lawyer.
D.
a leader.
【判断题】After he accepts the assignment of meeting tourists, the guide should check the date, time and place of their arrival.
A.
正确
B.
错误
【单选题】用于暂时存放外围设备送往cpu的数据或者在dma方式下送往内存的数据的寄存器叫做_________。
A.
控制寄存器
B.
数据输出寄存器
C.
数据输入寄存器
D.
状态寄存器
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